Well I recommend just the Betta fish and idk but I think the plants are ok just have to keep up with water changes to reintergrate some minerals that the plant uses.. The snail has a lot of bioload so the water quality will be way to deteriorated for so many animals for a plant you want either an small Anubis latched on some of your deco or a java fern or moss.... You can also put in a moss ball which I hear Betta loves to cuddle and play around with it (also hear they move on their own so it's like having a snail with no bioload) how ever the moss balls can be a little pricy for what it is... The cheapest I saw was 5 bucks at a mom and pop fish store but at petco and Petsmart it's like 7-8 bucks... Hope this helped